/**
 * @file Describe the file
 * @author liumengjie
 */
var ajax = {};
window.__statis = {
    push: function (data) {
        /* eslint fecs-camelcase: [2, {ignore: ["/^ar_/"]}, {ignore: ["/^event_/"]}] */
        ajax.get('/artrack/count_ar', {
            event_id: 'share_page_pv',
            ar_key: data['arkey'],
            ar_type: data['artype']
        });
    }
};
ajax.x = function () {
    if (typeof XMLHttpRequest !== 'undefined') {
        return new XMLHttpRequest();
    }
    var versions = [
        'MSXML2.XmlHttp.6.0',
        'MSXML2.XmlHttp.5.0',
        'MSXML2.XmlHttp.4.0',
        'MSXML2.XmlHttp.3.0',
        'MSXML2.XmlHttp.2.0',
        'Microsoft.XmlHttp'
    ];

    var xhr;
    for (var i = 0; i < versions.length; i++) {
        try {
            xhr = new ActiveXObject(versions[i]);
            break;
        } catch (e) {}
    }
    return xhr;
};

ajax.send = function (url, method, data, success, fail, async) {
    if (async === undefined) {
        async = true;
    }
    var x = ajax.x();
    x.open(method, url, async);
    x.onreadystatechange = function () {
        if (x.readyState === 4) {
            var status = x.status;
            if (status >= 200 && status < 300) {
                success && success(x.responseText, x.responseXML);
            } else {
                fail && fail(status);
            }

        }
    };
    if (method === 'POST') {
        x.setRequestHeader('Content-type', 'application/x-www-form-urlencoded');
    }
    x.send(data);
};

ajax.get = function (url, data, callback, fail, async) {
    var query = [];
    for (var key in data) {
        query.push(encodeURIComponent(key) + '=' + encodeURIComponent(data[key]));
    }
    ajax.send(url + (query.length ? '?' + query.join('&') : ''), 'GET', null, callback, fail, async);
};

ajax.post = function (url, data, callback, fail, async) {
    var query = [];
    for (var key in data) {
        query.push(encodeURIComponent(key) + '=' + encodeURIComponent(data[key]));
    }
    ajax.send(url, 'POST', query.join('&'), callback, fail, async);
};

// 发送统计请求
// ajax.get('/artrack/count_ar', {
//     event_id: 'share_page_pv',
//     ar_key: arDatas['arkey'],
//     ar_type: arDatas['artype']
// });